/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package cn.edu.seu.cose.hobbysharing.servlet;

import cn.edu.seu.cose.hobbysharing.tool.XMLTranslator;
import cn.edu.seu.cose.hobbysharing.bean.Hobby;
import cn.edu.seu.cose.hobbysharing.bean.HobbyList;
import cn.edu.seu.cose.hobbysharing.dao.HobbyDao;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collection;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 *
 * @author Xiang
 */
@WebServlet(name = "HobbyViewer", urlPatterns = {"/viewhobbies"})
public class HobbyViewer extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/xml;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            HobbyDao hd = new HobbyDao();
            Collection<Hobby> hc = hd.getRandomHobbies(1000);
            HobbyList hl = new HobbyList();
            hl.setHobby(hc);
            out.print(XMLTranslator.objToXML(hl));
        }catch(Exception ex){
            response.sendError(500, ex.getMessage());
        }
        finally {            
            out.close();
        }
    }
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}